Mechanical equipment of buildings; a reference book for engineers and architects (1916)
Harding, Louis Allen, Willard, Arthur C. (Arthur Cutts), 1878-1960 · New York Wiley · leaf 594
Fig. 27. Blow-off Valve.{Lunkenheimer.) … Fig. 28. Plug Cock.(Asbestos Packed.) Identification of Valve. A directory of valves or a proper ineajis of identification of the linescontrolled by them should be required in all systems wherein any possibility of confusion as towhich valve to operate to affect a certain line may arise. 568…
Building · Heating · Ventilation
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